There is a logic to thebox primitives:
You don't say which edges you plan to include, but from what you describe, your new primitive should be tri2.dat or tri2-n, if one or more of the 9 edges are omitted.
Code:
box
n = number of faces [i]present[/i]
x = used to differentiate the different configurations of faces (- = the "default" adjacent, o = 4-face ring, u = 3-face "U"-section)
e = number of faces [i]absent[/i]
p = used to differentiate different configurations of the missing edges (a=adjacent, p=parallel)You don't say which edges you plan to include, but from what you describe, your new primitive should be tri2.dat or tri2-n, if one or more of the 9 edges are omitted.
Chris (LDraw Parts Library Admin)